To provide a simultaneous extrusion system for extruding a foamed core counter top shaped section.

This simultaneous extrusion system comprises plural hoppers 14, 16, 18 connected to a conventional dryer unit, plural extrusion machines 26, 28, 30 connected to the hoppers 14, 16, 18 respectively, simultaneous extrusion dies 32, a size regulation device 34, a cooling tank 36, a take-up device 38 and a cutting/assembling unit 40. The simultaneous extrusion dies 32 constitute an odd-shaped path, through which a counter top material is extruded. The counter top shaped section is a three-tier extrusion product formed of a foamed polymer base material layer as a support or a support layer, a thin and solid polymer surface material layer and a thin and opaque layer between the support layer and the polymer surface material layer.